CN217475818U - Internal pressure compression nut and wrench - Google Patents
Internal pressure compression nut and wrench Download PDFInfo
- Publication number
- CN217475818U CN217475818U CN202221569117.8U CN202221569117U CN217475818U CN 217475818 U CN217475818 U CN 217475818U CN 202221569117 U CN202221569117 U CN 202221569117U CN 217475818 U CN217475818 U CN 217475818U
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- Prior art keywords
- dovetail
- forked tail
- length
- nut
- groove
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model belongs to the technical field of machinery, especially, relate to an interior pressure gland nut and spanner, including nut and spanner. The nut side is equipped with the external screw thread, and the nut upper surface is ring shape, and round forked tail draw-in groove has been seted up along ring shape to its upper surface, and forked tail draw-in groove longitudinal section is trapezoidal, and forked tail draw-in groove tank bottom length is greater than its opening length, and its lateral wall is 60~80 degrees with bottom surface contained angle alpha. The spanner comprises a handle and a spanner head, dovetail clamping teeth matched with the spanner head in shape are arranged at the positions, matched with the dovetail clamping grooves, on the spanner head, the longitudinal sections of the dovetail clamping teeth are trapezoidal, the length of the tooth tops of the dovetail clamping teeth is larger than that of the tooth bottoms, and the included angles beta and alpha between the side walls of the dovetail clamping teeth and the surface of the spanner head are equal; the top length of forked tail latch is less than the tank bottom length of forked tail draw-in groove, and length is less than the opening length of forked tail draw-in groove at the bottom of the tooth of forked tail latch, and the top length of forked tail latch is greater than the opening length of forked tail draw-in groove. The utility model discloses it is effectual to prevent skidding, can effectively prevent fish tail workman's hand.
Description
Technical Field
The utility model belongs to the technical field of machinery, especially, relate to an interior pressure gland nut and spanner.
Background
The ER chuck is a cylindrical fixture which is used for fixing a drilling and tapping tool or a milling tool and is also called an ER collet and is arranged on a main shaft of a drilling, tapping, milling machine or a machining center. The fixing and locking device can also be used for fixing and reinforcing parts needing to be reformed and processed. The ER chuck is usually arranged at the outer end of the main shaft, after a cutter or a processing part is placed in the ER chuck, the chuck is pressed in the main shaft through an ER fixing nut, part of the ER fixing nut is an internal pressure compression nut which is provided with an external thread, the main shaft is provided with an internal thread, and the internal pressure compression nut is sleeved on the cutter and is in threaded connection with the main shaft.
When pressing gland nut in needs screw in, need corresponding spanner just can be with its screw in, several cylindricality draw-in grooves have been seted up to ordinary interior pressure gland nut upper surface, are equipped with corresponding cylindricality on its spanner that corresponds, and this type's spanner is when pressing gland nut in rotating, skids easily, influences the processing beat and easily fish tail workman's hand simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art's weak point, and provide interior pressure gland nut and spanner that prevent to skid.
The utility model aims at solving the problems by the following technical scheme:
the utility model provides an interior pressure gland nut and spanner which characterized in that: comprises a nut and a wrench;
the side surface of the nut is provided with external threads, the upper surface of the nut is annular, a circle of dovetail clamping grooves are formed in the upper surface of the nut along the annular shape, the longitudinal section of each dovetail clamping groove is trapezoidal, the length of the bottom of each dovetail clamping groove is greater than the length of an opening of each dovetail clamping groove, and the included angle alpha between the side wall of each dovetail clamping groove and the bottom of each dovetail clamping groove is 60-80 degrees;
the wrench comprises a handle and a wrench head, wherein dovetail latches matched with the dovetail slots in shape are arranged at positions, matched with the dovetail slots, on the wrench head, the longitudinal sections of the dovetail latches are trapezoidal, the length of tooth tops of the dovetail latches is greater than that of tooth bottoms, and the included angles beta and alpha between the side walls of the dovetail latches and the surface of the wrench head are equal; the tooth top length of forked tail latch is less than the tank bottom length of forked tail draw-in groove, and the tooth bottom length of forked tail latch is less than the opening length of forked tail draw-in groove, and the tooth top length of forked tail latch is greater than the opening length of forked tail draw-in groove.
Based on above-mentioned structure, the forked tail latch on the spanner imbeds in the forked tail draw-in groove on the nut back, can rotate the nut, and the forked tail latch of forked tail shape is difficult from the interior roll-off of forked tail draw-in groove, can effectively avoid the staff to be accelerated the installation rate by the fish tail simultaneously.
Preferably, the contained angle alpha of forked tail draw-in groove lateral wall and bottom surface is 75 degrees.
Preferably, the utility model discloses a plurality of forked tail draw-in grooves evenly set up along the circumference, and contained angle gamma between two adjacent forked tail draw-in grooves is 6-30 degrees.
Preferably, the wrench end opening part is convex, and the forked tail latch evenly sets up along the circular arc, and forked tail latch number is less than the number of forked tail draw-in groove.
Preferably, handle, wrench end, forked tail latch integrated into one piece.
Preferably, nut, forked tail draw-in groove integrated into one piece.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
1. dovetail latch on the spanner imbeds in the forked tail draw-in groove on the nut back, can rotate the nut, and the forked tail latch of forked tail shape is difficult for following the interior roll-off of forked tail draw-in groove, can effectively avoid the staff to be by the fish tail, has accelerated the installation rate simultaneously.
2. Dovetail card slot lateral wall is 60~80 degrees with bottom surface contained angle alpha, and its preferred angle is 75 degrees, and the contained angle beta on forked tail latch lateral wall and spanner head surface equals with alpha angle, and the angle is too little, and in the difficult card income forked tail card slot of forked tail latch, the angle was too big, and the interior roll-off of forked tail card slot is easily followed to the forked tail latch.
3. A plurality of forked tail draw-in grooves evenly set up along the circumference, and the forked tail latch evenly sets up along the circular arc, and when installation and dismantlement, the forked tail latch can evenly atress, and is lighter during swivel nut to can prolong the life of spanner.
4. Handle, spanner head, forked tail latch integrated into one piece have improved the holistic steadiness of being connected of forked tail latch and spanner, have increased its life.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the nut of the present invention.
Fig. 3 is a schematic view of the top view structure of the nut of the present invention.
FIG. 4 is a schematic cross-sectional view of FIG. 3A-A.
Fig. 5 is a schematic view of the three-dimensional structure of the wrench of the present invention.
Fig. 6 is a schematic view of the wrench in a bottom view.
FIG. 7 is a schematic cross-sectional view of the structure of FIG. 6B-B.
In the figure: nut 1, spanner 2, external screw thread 3, forked tail draw-in groove 4, forked tail latch 5, handle 6, spanner head 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an internal pressure compression nut and wrench includes a nut 1 and a wrench 2.
As shown in fig. 2-4, the side surface of the nut 1 is provided with an external thread 3, the upper surface of the nut 1 is annular, the upper surface of the nut 1 is provided with a ring of dovetail grooves 4 along the annular shape, and the nut 1 and the dovetail grooves 4 are integrated. 4 longitudinal sections of forked tail draw-in groove are trapezoidal, and 4 tank bottom lengths of forked tail draw-in groove are greater than its opening length, and 4 lateral walls of forked tail draw-in groove are 60~80 degrees with bottom surface contained angle alpha, and its preferred angle is 75 degrees, and the angle is too little, and in 5 difficult card income forked tail draw-in grooves 4 of forked tail latch, the too big words of angle, roll-off in 5 easy follow forked tail draw-in grooves 4 of forked tail latch. The dovetail slots 4 are uniformly arranged along the circumference, and the included angle gamma between two adjacent dovetail slots 4 is 6-30 degrees.
As shown in fig. 5-7, spanner 2 includes handle 6 and spanner head 7, and the position of being equipped with shape and forked tail draw-in groove 4 matched with on the spanner head 7 with forked tail draw-in groove 4 matched with is equipped with forked tail latch 5, handle 6, spanner head 7, forked tail latch 5 integrated into one piece have improved the forked tail card, and 5 and 2 holistic connection steadiness of spanner have increased its life.
The longitudinal section of the dovetail latch 5 is trapezoidal, the tooth top length of the dovetail latch 5 is greater than the tooth bottom length, and the included angle beta between the side wall of the dovetail latch 5 and the surface of the wrench head 7 is equal to the angle alpha. The top length of forked tail latch 5 is less than the tank bottom length of forked tail draw-in groove 4, and the tooth bottom length of forked tail latch 5 is less than the opening length of forked tail draw-in groove 4, and the top length of forked tail latch 5 is greater than the opening length of forked tail draw-in groove 4. The opening part of the wrench head 7 is arc-shaped, the dovetail latch 5 is uniformly arranged along the arc, and the number of the dovetail latch 5 is less than that of the dovetail slot 4.
The utility model discloses when using, behind the forked tail draw-in groove 4 on the forked tail latch 5 embedding nut 1 on the spanner, can rotate nut 1, the whole size of forked tail latch 5 is less than the whole size of forked tail draw-in groove 4, therefore forked tail latch 5 can block in the forked tail draw-in groove 4, and the length that forked tail latch 5 is in the addendum in the outside is greater than the opening length of forked tail draw-in groove 4, the forked tail latch 5 of forked tail shape is difficult for following the interior roll-off of forked tail draw-in groove 4, can effectively avoid the staff to be by the fish tail, the installation rate has been accelerated simultaneously.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The utility model provides an interior pressure gland nut and spanner which characterized in that: comprises a nut and a wrench;
the side surface of the nut is provided with external threads, the upper surface of the nut is annular, a circle of dovetail clamping grooves are formed in the upper surface of the nut along the annular shape, the longitudinal section of each dovetail clamping groove is trapezoidal, the length of the bottom of each dovetail clamping groove is greater than the length of an opening of each dovetail clamping groove, and the included angle alpha between the side wall of each dovetail clamping groove and the bottom surface of each dovetail clamping groove is 60-80 degrees;
the spanner comprises a handle and a spanner head, wherein dovetail latch teeth matched with the dovetail slots in shape are arranged at the positions, matched with the dovetail slots, on the spanner head, the longitudinal sections of the dovetail latch teeth are trapezoidal, the length of tooth tops of the dovetail latch teeth is greater than that of tooth bottoms, and the included angles beta and alpha between the side walls of the dovetail latch teeth and the surface of the spanner head are equal; the top length of forked tail latch is less than the tank bottom length of forked tail draw-in groove, and the tooth bottom length of forked tail latch is less than the opening length of forked tail draw-in groove, and the top length of forked tail latch is greater than the opening length of forked tail draw-in groove.
2. The internal pressure compression nut and wrench of claim 1, wherein: and an included angle alpha between the side wall of the dovetail clamping groove and the bottom surface is 75 degrees.
3. The internal pressure compression nut and wrench of claim 1, wherein: the dovetail slots are uniformly arranged along the circumference, and the included angle gamma between two adjacent dovetail slots is 6-30 degrees.
4. The internal pressure compression nut and wrench of claim 1, wherein: the opening of the wrench head is arc-shaped, the dovetail latches are uniformly arranged along the arc, and the number of the dovetail latches is less than that of the dovetail slots.
5. The internal pressure compression nut and wrench of claim 1, wherein: the handle, the wrench head and the dovetail latch are integrally formed.
6. The internal pressure compression nut and wrench of claim 1, wherein: the nut and the dovetail clamping groove are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221569117.8U CN217475818U (en) | 2022-06-22 | 2022-06-22 | Internal pressure compression nut and wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221569117.8U CN217475818U (en) | 2022-06-22 | 2022-06-22 | Internal pressure compression nut and wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217475818U true CN217475818U (en) | 2022-09-23 |
Family
ID=83315991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221569117.8U Active CN217475818U (en) | 2022-06-22 | 2022-06-22 | Internal pressure compression nut and wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217475818U (en) |
-
2022
- 2022-06-22 CN CN202221569117.8U patent/CN217475818U/en active Active
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